Multiselect

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Multiselect",
  "author": "Andy Tech",
  "description": "Quickly multiselect multiple checkboxes; hover over checkboxes + Alt key to check, or Shift key to uncheck. ",
  "version": "1.0",
  "permissions": [
    "activeTab"
  ],
  "icons": {
    "128": "images/checkbox-128.png"
  },
  "background": {
    "script": [
      "thirdParty/jquery3.7.1.min.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "thirdParty/jquery3.7.1.min.js",
        "multicheck.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ]
}